Question

Help me !!!! ASAP !:)

Answer 1

`12y=-7`

Explanation:

Algebra and Equations

When two or more equations are explicitly given, we can perform operations like addition, subtraction, product, and division with them, the left-hand sides of each equation apart from the right-hand sides. The resulting equation will not be independent of the others but may result in handy to solve the system.

We are given these two equations

`2x+7y=-8`

`2x-5y=-1`

If we wanted to subtract the second equation from the first, we must do the following

`2x+7y-(2x-5y)=-8-(-1)`

`2x+7y-2x+5y=-8+1`

Simplifying (the x's will cancel)

`12y=-7`